using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Net.Sockets;

using System.Net;

namespace TCP客户端

{

    class Program

    {

        static void Main(string[] args)

        {

            Socket clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);

            clientSocket.Connect(new IPEndPoint(IPAddress.Parse("192.168.43.231"), 7788));

            //接收消息

            byte[] data = new byte[1024];

            int count= clientSocket.Receive(data);

            string message = Encoding.UTF8.GetString(data, 0, count);

            Console.WriteLine(message);

            //发送消息

            while (true)

            {

                string messageSend = Console.ReadLine();    

                //Console.Write(messageSend);

                clientSocket.Send(Encoding.UTF8.GetBytes(messageSend));

                if (messageSend == "c")

                {

                    clientSocket.Close();

                    return;

                }

                clientSocket.Send(Encoding.UTF8.GetBytes(messageSend));

            }

            Console.ReadKey();

            clientSocket.Close();

        }

    }

}

 

 

using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

namespace TCP客户端

{

    class Message

    {

        public static byte[] GetBytes(string data)

        {

            byte[] dataBytes = Encoding.UTF8.GetBytes(data);

            int dataLength = dataBytes.Length;

            byte[] lengthBytes = BitConverter.GetBytes(dataLength);

            byte[] newBytes = lengthBytes.Concat(dataBytes).ToArray();

            return newBytes;

        }

    }

}